Answer:
The correct answer is The study has a problem with the External validity
Explanation:
External validity in research terms is the validity the research has in the outside world or in the applied social reality of the field of study, it is the extent in which the results and conclusions of the study can be applied and generalized to ohter external factors, therefore in this case, when the researchers did the experiment only with motivated volunteers did not take into account that people outside may not have the same motivation, therefore the results may not be the same in the external social reality and thus having problems with the external validity.
bi-focal eyeglasses, self-winding clock, parachutes, <span>the hot-air </span>balloon, <span>the </span>safety lock, steamboats, and <span>the </span><span>circular saw :)</span>
If this child has not yet achieved object permanence, <u>she will not look for the cheerio</u>: Option A is correct.
According to the fundamental concept of developmental psychology, object permanence describes the ability of<em> a child to know that objects continue to exist even though these objects cannot be heard or seen physically.</em>
When a child has not yet achieved object permanence, it means they have <em>not reached the stage to know that objects can continue to exist </em>even though these objects cannot be heard or seen physically
Based on this, a child that a cheerio was hidden from him/her no matter the position of such object will <u>not bother to look for the Cheerio</u> since they have not reached the stage to know that objects can continue to exist.
Learn more here: brainly.com/question/25097828
Answer:
B
Explanation:
Let me know if it's wrong. :) Thanks!
